Brush-holder.



PATENTED MAY 7, 1907.

P. M. GONLEE. BRUSH HOLDER;

APPLIOA'I'ION FILED SE?T.11, 1906.

Winawes;

(w/M a mi 4 mum r N0. ssrmes.

10 mil whom 1 1' mm omzicmvt;

Be it known that Fnnnrnucir (Toxins, a. citizen. ot the United trltates, residing at Madison, county of Dane, State 0 t at isronsin, have, invented certain new and uselul linproveinents in Brush-Holders, of whieh the following is s specification.

My intention relates to lnush-holder devices for dynnino-electric machines and has for its object to improve the. sznne.

'iho various features of novelty of my invention will be particularly pointed out in the u pended churns, hut tor s lull unders landing ol my invention reference may he I had to the lollowing detailed descru t1ou 'tulien in connection with the sceoinpsnying drawing which illustrates u perl'erred e1n hodinient.

in said drawing, Figure 1 is u plan view olf the hrusleholder; Fig. .2 iso section tulreu on line 2, l, of Fig. l; und Fig. I} is similar to Fig. 2, with souls of the parts occupying dill'erent positions, however.

Reference being; had to the drawing, 1 in- .diezites u brush-holder l'rznne ol' any snitzihle eonstruetion lniving nu openiue '3 ndupted to receive and guide a brush 3, nnd provided also with the usual slot t ndupted to reeeire fastening means whereby the l rush-hol ler nut he adjusted with reference to the. (0111- 1 niutstor.

sun 8, preferably forming integrs 5 is it follower pivoted at 6 between ears 1 the frame. The follower is adopted to uponthc top of the brush when in opera position, sons to press the brush yi ldii; ugziinst the commutator. The rer uisite te l 1 sion upon the brush is sec-urea by means ol s ists made by means of a pin 11 carried by ths lollower and about w o'r the hich the end spring ishent, as st 12. 1

is exerted thereon to ores."

. lorusn. Upon swingnig t'n i parts ol I gouung the points l3 and B OB TU IIORTEL 3 ll PUB ATION 0F want out ol engagement with the brush tlnroueh :rconsidernhle angle, a. point is r ached, as indicated in dotted lines in Fig.

35, at which the spring lMLOlllGs neutral; and, site! this point is passed, the tension ol the. spring is exerted to hold the follower in its inoperative position. in other words, when the fol-lower is moved in either direction so :is to hri. the pin ll 1 the striiight line it), the spring has tendency to cure the l'ollower further in the s-une dire lion. fhereiore; when it is de sired to remove the brush. the i'ollower is swung lnrelrwnrd post the neutral position, ss, lor exzunple, to the position shown in lull lines in and is then securely retained out of engagement with the brush through the action ol' the spring; The l'ollower may prevented l'roiu swi ring back further than to the position indieuteil in full lines in 3 in on suitnliie nmnner, 21s, [or {231L111- ple, (Ullbil'tlliw e spirals ol' the spring may l. v 'uused to eu'e'ne'e with eur'h other, at at when the lollower reuehes this positi lollowei' nun eo 1. the outer l he i-shuped and he pivot urins th .e1el r housins l'ornied the l'ollower within which yt'zc spring; he loeuted. ln this way a sun sl unliol and 'uetion is seciueeln Units may tfhst claw-i. res new 11nd desire to secure o it ol the L lUtLLl tttstes, is:

a in o. brush-holder, z l'rsnie having 9.

guide tor s hr h, at ower pivoted. id 5 .0, and s ursl sp nu; urrsnged to hold.

z-iuid follower in the ln'ush-enguging position w r Us in: 0 Sit or in a). position to clear the hrush.

2 in :1 l)li-.Sllll0ltlt1', s. lrzuue llitving" u guide lei a. crush, it lollower pivoted to ssid I spirsl'sprhug eonne ted at its sposil'e eni s to the l'ollower and. to tho rrzuue respectively and arranged to hohltho ollc'wer in the brusleengsging position or in position to clear the brush.

in n brush-holder, s. frmno ironic, and r l having at guide for e. brush, it follower inovuhly mountl ed on-ssid rrzrnie, und 1. spiral springtending to mowsuid follower'iu one direction when e follower in theop-= ion, tollower is on the :1 de or sand p .lron.

tilt

hen

' lower and having its ends secured respecframe, and a spiral spring having one or more coils surrounding the pivotal axis of said follower and having its ends secured respectively to the follower and to the frame at such points that the spring serves to hold the follower in the brush-engaging position or in a position to clear the brush.

5. In a brush holder, a frame. having' a guide for a brush, a follower pivoted on said frame, a spiral spring having one'or more coils surrounding the pivotal axis of said foltively to the follower and to the frame, the parts being so proportioned that the spring normally holds the follower in brush-engaging position but permits the follower to be swung away from the brush to a position 1 'wherein the follower is held clear of the brush by the spring.

6. In a blush-holder, a frame having a uide for a brush, a followerpivoted on said -rame, and a spiral spri n having its ends connected respectively to tie follower and to the frame, said spring being so proportioned and arranged that the' follower may be moved against the tension thereof from either direction toward and past a position wherein the oints of connection of the spring with the ollower and the frame are in a straight line including a point on the pivotal axis of the follower.

In witness whereof, I have hereunto set my hand this 8th dayof September, 1906.

FREDERICK M. CONLEE.

Witnesses:

EMiL A; LAMBREGHT, A. J. BUENZLI. 

